Hardware layout and configuration
UM1668
20/70
DocID025151 Rev 2
2.18
Display and input devices
A 5.7 inch 640 x 480 TFT color LCD with capacitive touch panel can be connected to the
RGB LCD interface of STM32F439NIH6.
4 general purpose color LED's (LD 1,2,3,4) are available as display devices.
The 4-direction joystick (B4), Wakeup (B2) and Tamper/key button (B3) are available as
input devices.
Table 13. LCD modules connector (CN20)
Pin No.
Description
Pin connection
Pin No.
Description
Pin connection
1
GND
-
2
GND
-
3
R0
PI15
4
G0
PJ7
5
R1
PJ0
6
G1
PJ8
7
R2
PJ1
8
G2
PJ9
9
R3
PJ2
10
G3
PJ10
11
R4
PJ3
12
G4
PJ11
13
R5
PJ4
14
G5
PK0
15
R6
PJ5
16
G6
PK1
17
R7
PJ6
18
G7
PK2
19
GND
-
20
GND
-
21
B0
PJ12
22
ENB
PK7
23
B1
PJ13
24
-
-
25
B2
PJ14
26
HSYNC
PI12
27
B3
PJ15
28
VSYNC
PI13
29
B4
PK3
30
GND
-
31
B5
PK4
32
CLK
PI14
33
B6
PK5
34
GND
-
35
B7
PK6
36
RESET#
-
37
GND
-
38
I2C1_SDA
PB9
39
INT
IO EXPANDER GPIO4
40
I2C1_SCL
PB6
41
-
-
42
-
-
43
BL_CTRL
PA8
44
-
-
45
5V
-
46
-
-
47
BLGND
-
48
-
-
49
BLGND
-
50
3.3V
-
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